X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Ffont-metric.cc;h=77f02df579c9beaedc747dcf7d565f4e00c1d5ed;hb=4d405ef96a8a62771d7d9a283ff5369a772e89d8;hp=2527069190ea16adf330c45ab96cc8277bf92dce;hpb=9f127ca14c9af5c0956a7ac82b7b15cd67fd7d57;p=lilypond.git diff --git a/lily/font-metric.cc b/lily/font-metric.cc index 2527069190..77f02df579 100644 --- a/lily/font-metric.cc +++ b/lily/font-metric.cc @@ -1,232 +1,158 @@ -/* - font-metric.cc -- implement Font_metric - - source file of the GNU LilyPond music typesetter - - (c) 1999--2004 Han-Wen Nienhuys +/* + This file is part of LilyPond, the GNU music typesetter. - Mats Bengtsson (the ugly TeX parsing in text_dimension) - */ + Copyright (C) 1999--2015 Han-Wen Nienhuys -#include -#include + LilyPond is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + LilyPond is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with LilyPond. If not, see . +*/ -#include "scaled-font-metric.hh" -#include "virtual-methods.hh" -#include "warn.hh" -#include "stencil.hh" -#include "ly-smobs.icc" #include "font-metric.hh" -#include "string.hh" + +#include +#include +using namespace std; + +#include "dimensions.hh" +#include "modified-font-metric.hh" +#include "open-type-font.hh" +#include "stencil.hh" +#include "warn.hh" + Real Font_metric::design_size () const { - return 1.0; + return 1.0 * point_constant; } -String -Font_metric::coding_scheme () const +Stencil +Font_metric::find_by_name (string s) const { - return "FontSpecific"; -} - + replace_all (&s, '-', 'M'); + int idx = name_to_index (s); + Box b; + SCM expr = SCM_EOL; + if (idx >= 0) + { + expr = scm_list_3 (ly_symbol2scm ("named-glyph"), + self_scm (), + ly_string2scm (s)); + b = get_indexed_char_dimensions (idx); + } + Stencil q (b, expr); + return q; +} Font_metric::Font_metric () { description_ = SCM_EOL; - self_scm_ = SCM_EOL; smobify_self (); } Font_metric::Font_metric (Font_metric const &) + : Smob () { } - Font_metric::~Font_metric () { } -int +size_t Font_metric::count () const { return 0; } -Box -Font_metric::get_ascii_char (int) const +Box +Font_metric::get_indexed_char_dimensions (size_t) const { return Box (Interval (0, 0), Interval (0, 0)); } -Box -Font_metric::get_indexed_char (int k) const -{ - return get_ascii_char (k); -} - -int -Font_metric::name_to_index (String) const -{ - return -1; -} - Offset -Font_metric::get_indexed_wxwy (int )const +Font_metric::get_indexed_wxwy (size_t) const { return Offset (0, 0); } void -Font_metric::derived_mark ()const +Font_metric::derived_mark () const { } SCM -Font_metric::mark_smob (SCM s) +Font_metric::mark_smob () const { - Font_metric *m = (Font_metric*) SCM_CELL_WORD_1 (s); - m->derived_mark (); - return m->description_; + derived_mark (); + return description_; } int -Font_metric::print_smob (SCM s, SCM port, scm_print_state *) +Font_metric::print_smob (SCM port, scm_print_state *) const { - Font_metric *m = unsmob_metrics (s); scm_puts ("#<", port); - scm_puts (classname (m), port); + scm_puts (class_name (), port); scm_puts (" ", port); - scm_write (m->description_, port); + scm_write (description_, port); scm_puts (">", port); return 1; } +const char * const Font_metric::type_p_name_ = "ly:font-metric?"; - -IMPLEMENT_SMOBS (Font_metric); -IMPLEMENT_DEFAULT_EQUAL_P (Font_metric); -IMPLEMENT_TYPE_P (Font_metric, "ly:font-metric?"); - -Stencil -Font_metric::find_by_name (String) const -{ - Stencil m; - return m; -} - -LY_DEFINE (ly_find_glyph_by_name, "ly:find-glyph-by-name", - 2, 0, 0, - (SCM font, SCM name), - "This function retrieves a Stencil for the glyph named @var{name} " - "in " - "@var{font}. " - "The font must be available as an AFM file. If the glyph " - "is not found, @code{#f} is returned. ") -{ - Font_metric *fm = unsmob_metrics (font); - SCM_ASSERT_TYPE (fm, font, SCM_ARG1, __FUNCTION__, "font-metric"); - SCM_ASSERT_TYPE (gh_string_p (name), name, SCM_ARG2, __FUNCTION__, "string"); - - Stencil m = fm->find_by_name (ly_scm2string (name)); - - /* TODO: make optional argument for default if not found. */ - return m.smobbed_copy (); -} - -LY_DEFINE (ly_get_glyph, "ly:get-glyph", - 2, 0, 0, - (SCM font, SCM index), - "Retrieve a Stencil for the glyph numbered @var{index} " - "in @var{font}.") -{ - Font_metric *fm = unsmob_metrics (font); - SCM_ASSERT_TYPE (fm, font, SCM_ARG1, __FUNCTION__, "font-metric"); - SCM_ASSERT_TYPE (gh_number_p (index), index, SCM_ARG2, __FUNCTION__, "number"); - - return fm->get_ascii_char_stencil (gh_scm2int (index)).smobbed_copy (); -} - -LY_DEFINE (ly_text_dimension,"ly:text-dimension", - 2, 0, 0, - (SCM font, SCM text), - "Given the font metric in @var{font} and the string @var{text}, " - "compute the extents of that text in that font. " - "The return value is a pair of number-pairs.") +SCM +Font_metric::font_file_name () const { - Box b; - Modified_font_metric*fm = dynamic_cast - (unsmob_metrics (font)); - SCM_ASSERT_TYPE (fm, font, SCM_ARG1, __FUNCTION__, "modified font metric"); - SCM_ASSERT_TYPE (gh_string_p (text), text, SCM_ARG2, __FUNCTION__, "string"); - - b = fm->text_dimension (ly_scm2string (text)); - - return gh_cons (ly_interval2scm (b[X_AXIS]), ly_interval2scm (b[Y_AXIS])); + return scm_car (description_); } -LY_DEFINE (ly_font_name,"ly:font-name", - 1, 0, 0, - (SCM font), - "Given the font metric @var{font}, " - "return the corresponding file name.") +string +Font_metric::font_name () const { - Font_metric *fm = unsmob_metrics (font); - SCM_ASSERT_TYPE (fm, font, SCM_ARG1, __FUNCTION__, "font-metric"); - return gh_car (fm->description_); + string s ("unknown"); + return s; } -LY_DEFINE (ly_font_magnification,"ly:font-magnification", 1 , 0, 0, - (SCM font), - "Given the font metric @var{font}, return the " - "magnification, relative to the current outputscale.") +size_t +Font_metric::index_to_charcode (size_t i) const { - Font_metric *fm = unsmob_metrics (font); - SCM_ASSERT_TYPE (fm, font, SCM_ARG1, __FUNCTION__, "font-metric"); - return gh_cdr (fm->description_); + return i; } -LY_DEFINE (ly_font_design_size,"ly:font-design-size", 1 , 0, 0, - (SCM font), - "Given the font metric @var{font}, return the " - "design size, relative to the current outputscale.") +Offset +Font_metric::attachment_point (const string&) const { - Font_metric *fm = unsmob_metrics (font); - SCM_ASSERT_TYPE (fm, font, SCM_ARG1, __FUNCTION__, "font-metric"); - return gh_double2scm (fm->design_size ()); + return Offset (0, 0); } -Stencil -Font_metric::get_ascii_char_stencil (int code) const +SCM +Font_metric::sub_fonts () const { - SCM at = scm_list_2 (ly_symbol2scm ("char"), gh_int2scm (code)); - at = fontify_atom (this, at); - Box b = get_ascii_char (code); - return Stencil (b, at); + return SCM_EOL; } Stencil -Font_metric::get_indexed_char_stencil (int code) const +Font_metric::text_stencil (Output_def *state, + const string&, + bool, + const string&) const { - SCM at = scm_list_2 (ly_symbol2scm ("char"), gh_int2scm (code)); - at = fontify_atom (this, at); - Box b = get_indexed_char (code); - return Stencil (b, at); -} + (void) state; -int -/*Font_metric::*/ -get_encoded_index (Font_metric *m, String input_coding, int code) -{ - String font_coding = m->coding_scheme (); - if (font_coding == input_coding) - return code; - SCM s = scm_call_3 (ly_scheme_function ("encoded-index"), - scm_makfrom0str (input_coding.to_str0 ()), - scm_makfrom0str (font_coding.to_str0 ()), - scm_int2num (code)); - return gh_scm2int (s); + programming_error ("Cannot get a text stencil from this font"); + return Stencil (Box (), SCM_EOL); }